1366 - Incorrect integer value: '' for column `mapshopatlogis`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '635c37ea29a7976f4b66400560fc1313', '216.73.216.155', '1751316265', '1751316265', '/shop_content.php/coID/3/content/Unsere-AGB')

[XT SQL Error]